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Specialised TiO2 grade for flat paints / Stéphane Cappelle in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4606 (03/2015)
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Titre : Specialised TiO2 grade for flat paints Type de document : texte imprimé Auteurs : Stéphane Cappelle, Auteur ; Steven de Backer, Auteur Année de publication : 2015 Article en page(s) : p. 42-44 Langues : Anglais (eng) Catégories : Dioxyde de titane
Formulation (Génie chimique)
Modèles numériques
Opacifiants
Prévision, Théorie de laIndex. décimale : 667.2 Colorants et pigments Résumé : Use of the Ti-Pure select TS-6300, a new highly treated TiO2, allowing optimal paint performance, while controlling costs and describe the development of a calculator supporting paint formulation work.
Highly treated 7102 grades are very effective in enhancing the hiding power of flat points by increasing Ti02 scattering efficiency through reduced Tr02 crowding and by enhancing air pore hiding contribution. A computer model has been developed to facilitate paint formulation with Ti-Pure Select TS-6300 by predicting key point properties depending on point composition and T102 type. This model can help minimise lab work required to achieve a formulation with optimised performance and cost.Note de contenu : - Fig. 1 : Relative scattering power as function of TiO2 particle separation
- Fig. 2 : SEM pictures of universal TiO2 treated TiO2
- Fig. 3 : Impact on hiding power of universal and highly treated TiO2 grades
- Fig. 4 : Hiding power of paints formulated with universal and TS-6300 TiO2 as a function of TiO2 level and PVC
- Fig. 5 : Hiding power pore contribution of paints formulated with universal and TS-6300 TiO2 grades as a function of TiO2 level and PVC
- Fig. 6 : Stain absorption of paints formulated with universal and highly treated TiO2 grades as a function of TiO2 level and PVC (higher values indicate more absorption of dirt)
- Fig. 7 : Hiding power, relative scrub sensitivity, relative tinting strength and cost of a typical paint containing 15% of a universal TiO2 grade and various amounts of a highly treated gradeEn ligne : https://drive.google.com/file/d/1ylFQl1kL3UJVVLPjNA5uQX0kWgXEW9x4/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23508
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 205, N° 4606 (03/2015) . - p. 42-44[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17051 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Specialty pigment - Fluorescent pigments Type de document : texte imprimé Auteurs : Yash Melkeri, Auteur ; Tipanna Melkeri, Auteur Année de publication : 2017 Article en page(s) : p. 84-88 Langues : Anglais (eng) Catégories : Dispersions et suspensions
Fluorescence
Luminescence
Photochromisme
Pigments à effets spéciaux
Polymères
Procédés de fabrication
Thermochromie
Thermodurcissables
ThermoplastiquesUne matière thermoplastique désigne une matière qui se ramollit (parfois on observe une fusion franche) d'une façon répétée lorsqu'elle est chauffée au-dessus d'une certaine température, mais qui, au-dessous, redevient dure. Une telle matière conservera donc toujours de manière réversible sa thermoplasticité initiale. Cette qualité rend le matériau thermoplastique potentiellement recyclable (après broyage). Cela implique que la matière ramollie ne soit pas thermiquement dégradée et que les contraintes mécaniques de cisaillement introduites par un procédé de mise en forme ne modifient pas la structure moléculaire.Index. décimale : 667.2 Colorants et pigments Résumé : Specilalty pigments are those which offer certain effects which are special such as glow, interference, brightness etc.. They are costly and consumed in less quantity. Fluorescent pigment is one type of specialty pigment. An emission of light by a luminescent pigment under excitation is fluorescent. Fluorescent pigments are bright and intense in colour and glow in day light pigment (also called daylight fluorescent). Unlike fluorescence, phosphorescent material does not immediately re-emit the radiation it absorbs. Absorbed radiation is re-emitted at a lower intensity for up to several hours after the original excitation. (e.g., glow-in-the-dark). Fluorescent pigments are classified into three categories viz. Day light fluorescent pigment, UV fluorescent pigments and IR Fluorescent Pigments. Fluorescent pigments are solid dye solutions in polar resin carriers. Fluorescent pigment manufacturing process involves dissolution of dyes in polymer matrix and pulverizing the resultant matrix into fine powder. Polymer matrix can be thermoplastic resin such as P-toluene sulphonamide (PTS amide), melamine and formaldehyde, polyamide, polyester, acrylate and can be thermoset plastics such as Ptoluene sulphonamide (PTS amide), melamine and formaldehyde and benzoqunamine formaldehyde. Fluorescent pigments are bright and attractive coloured pigments but poor light and thermal stability. Fluorescent pigments are used in plastics, paints, inks, textiles, cosmetics, and security papers. Note de contenu : - Fluorescent pigments
- Daylight fluorescent pigments
- Composition of day light fluorescent pigments : Dyes used for fluorescent pigments - Polymer system used for fluorescent pigments - Thermoplastic pigment (melamine formaldehyde type) - Thermoset pigment (melamine formaldehyde type) - Thermoset pigment (benzoguanamine formaldehyde type) - Thermoplastic pigment (polyamide type) - Thermoplastic pigment (polyester type) - Thermoplastic pigment (vinyl or acrylic type) - Aqueous dispersions (acrylic type)
- Manufacturing process
- Preparation of Solid Dye solution in polymer matrix
- Grinding pulverising polymer matrix : Properties of day light fluorescent pigments 3 - UsesEn ligne : https://drive.google.com/file/d/1cN-NuGvL8qC9wVkAtPmjdiMqbS8dwSFw/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29335
in PAINTINDIA > Vol. LXVII, N° 9 (09/2017) . - p. 84-88[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19295 - Périodique Bibliothèque principale Documentaires Disponible Specialty pigment - Phosphorescent pigments / Yash Melkeri in PAINTINDIA, Vol. LXVII, N° 10 (10/2017)
[article]
Titre : Specialty pigment - Phosphorescent pigments Type de document : texte imprimé Auteurs : Yash Melkeri, Auteur ; Tipanna Melkeri, Auteur Année de publication : 2017 Article en page(s) : p. 82-86 Langues : Anglais (eng) Catégories : Phosphorescence
Pigments à effets spéciauxIndex. décimale : 667.2 Colorants et pigments Résumé : Luminescence can be defined as it is radiation emitted by molecule or atom on return to the ground state from the excited state after initial absorption of energy. Phosphorescent are type of photoluminescence which involves absorption of energy and excitation of atom to higher energy level followed by electromagnetic radiation (return to ground state). The difference between fluorescence and phosphorescence is in the emission time. As a rule of thumb, if emission stops after the excitation source has been removed, then the resulting luminance is called fluorescence; if emission continues (so called "afterglow") then it is called phosphorescence. Common pigments used in phosphorescent materials include zinc sulfide and strontium aluminate. The glow is due to the unique properties of crystalline zinc sulfide. Copper is added to the zinc sulfide as an activator. It gies dark green colour in dark. Another class of phosphorescent pigments are based on Strontium aluminate. These are light green colour phosphorescent pigment in dark. Calcium sulphide (CaS) gives dark red colour night colour night glow in dark. A new class of phosphorescent pigments based on rare earth alkali earth metals also now commercially available. These pigments at equal loading had 10 times the afterglow and 10 times the brightness of classical phosphorescent pigments. These rare earth alkaline earth metal pigments were also manufactured in a blue green (aqua) and violet afterglow colours. Phosphorescent pigments used in various applications such as plastics, paints, Inks etc. Note de contenu : - ZINC SULPHIDE BASED PHOSPHORESCENT PIGMENT
- STRONTIUM ALUMINATE BASED PHOSPHORESCENT PIGMENT
- CALCIUM SULPHIDE BASED PHOSPHORESCENT PIGMENT
- RARE EARTH ALKALINE METAL BASED PHOSPHORESCENT PIGMENT : Comparison of rare earth metal silicate based phosphorescent pigment with conventional Zinc Sulphide based phosphorescent pigment.
- APPLICATIONS OF PHOSPHORESCENT PIGMENTS : Paints & Coatings - Inks (Silk Screen & UV cured) - PlasticsEn ligne : https://drive.google.com/file/d/1W8Zgc26dP-7Mjdx8AxLHrMp-1pE-i7up/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29728
in PAINTINDIA > Vol. LXVII, N° 10 (10/2017) . - p. 82-86[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19478 - Périodique Bibliothèque principale Documentaires Disponible Specialty pigment - Phosphorescent pigments / Yash Melkeri in PAINTINDIA, Vol. LXVII, N° 11 (11/2017)
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Titre : Specialty pigment - Phosphorescent pigments Type de document : texte imprimé Auteurs : Yash Melkeri, Auteur Année de publication : 2017 Article en page(s) : p. 82-84 Langues : Anglais (eng) Catégories : Phosphorescence
Pigments à effets spéciaux
ThermochromieIndex. décimale : 667.2 Colorants et pigments Résumé : Thermochromic pigments changes colour with change in temperature. The change in colour is because of change in crystal structure or change in molecular structure of the material, because of which the material absorbs or emits light of different wavelength. Thermochromic pigments are based on liquid crystal material, leuco dyes and inorganic materials. Liquid crystal based materials shows change in colour with temperature because of change in crystal structure with temperature. Leuco dyes based material changes molecular structure with temperature. Both liquid crystal material and leuco dyes are micro encapsulated. Inorganic materials show change in colour with temperature because of change in electronic porperties of compound. Liquid crystal based pigment are used in precision applications, as their responses can be engineered to accurate temperatures, but their color range is limited by their principle of operation. Leuco dyes based thermochromic materials have less accurate temperature response than liquid crystals. Thermochromic pigments find applications in paints, plastics, inks, fabric. Note de contenu : - Liquid crystal technology
- Based on Leuco dyes
- Inorganic materials
- Uses of thermochromic pigments paints
- Papers
- Plastic polymers
- Inks
- Textile
- FIGURES : 1. Thermochromism effect - 2. Thermochromic pigment based on leuco dyes in hyper colour - 3. Paints made from thermochromic pigment mixed with conventional pigment - 4. Paint made from blue themochromic pigment painted on plastic glassEn ligne : https://drive.google.com/file/d/1DGOOmfWXoeMqSkWjojZtls29UYUZwu6u/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29745
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Code-barres Cote Support Localisation Section Disponibilité 19480 - Périodique Bibliothèque principale Documentaires Disponible Specialty pigment - Photochromic pigments / Tipanna Melkeri in PAINTINDIA, Vol. LXVII, N° 12 (12/2017)
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Titre : Specialty pigment - Photochromic pigments Type de document : texte imprimé Auteurs : Tipanna Melkeri, Auteur Année de publication : 2017 Article en page(s) : p. 96-98 Langues : Anglais (eng) Catégories : Photochromisme
Pigments à effets spéciauxIndex. décimale : 667.2 Colorants et pigments Résumé : Photochromic pigments are micro-encapsulated particles having photochromic cycles in it. The process in which the compound absorbs light/UV radiations and has reversible changes in its colour is called photochromism. Various kinds of dyes show photochromism effect such as spiropyrans, diarylethene, azobenzene, quinone etc., Spiropyrans are one of the oldest and perhaps the most studied families of photochromic dyes. Diarylethene class of photochromic compounds which are thermally irreversible and are fatigue resistant is of commercial importance. Photochromic complexes based on above mentioned dyes and metal are also used as photochromic compounds. Inorganic compounds like silver chloride, tungsten oxide(W03), etc. shows photochromic effect. Coordination compIex such as sodium nitroprusside and the ruthenium sulfoxide also shows photchromism. Photochromic compounds are used in various applications vz: sanglasses, supermolecular chemistry, solar energy, data storage and photochromic pigments. Photochromic dyes are encapsulated into polymer matrix to obtain photochromic pigment. Photochromic pigments are heat and solvent resistant. Same of these colorants have excellent weatherability and light fastness, and some others have quite poor light and chemical fastnesses. Photochromic pigments are used in plastics, paints, inks, etc. These are also used in novelty items Iike toy, cosmetics, clothing and industrial applications. These pigments are also used in combination with conventional oigments to getvarious colour effects. Note de contenu : - SYNTHETIC DYES : diarylethenes - Azobenzenes - Photochromic quinones
- PHOTOCHROMIC COMPLEXES : Inorganic photochromic compounds - Sunglasses - Supramolecular chemistry - Data storage - Solar energy storage - Photochromic pigments
- FIGURES : 1. Absorption of light and photochromism phenomenon - 2. Spiro-mero photochromism - 3. Diarylethene photochemistry - 4. Photo characteristics of diarylethenes based photochromic dyes - 5. Azobenzene photoisomerization - - 6a. Various kinds of photochromic dyes an dtheir photochemistry - 6b. Various kinds of photochromic dyes and their photochemistry - 7. Photochromic pigment in nail polish formulationsEn ligne : https://drive.google.com/file/d/1XQ5BENtrneOpFdQLjlWzuY__YujNWtyd/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29766
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Code-barres Cote Support Localisation Section Disponibilité 19479 - Périodique Bibliothèque principale Documentaires Disponible Specific surface & mill base concentration / Mukund Hulyalkar in PAINTINDIA, Vol. LXVIII, N° 12 (12/2018)
PermalinkSpectroscopic and conductometric studies on the interactions of thionine with anionic and nonionic surfactants / Sinem Göktürk in COLORATION TECHNOLOGY, Vol. 133, N° 5 (10/2017)
PermalinkSpectroscopic evaluation of the colour play effect of thermochromic liquid crystal printing inks / Maja Jakovlević in COLORATION TECHNOLOGY, Vol. 133, N° 1 (02/2017)
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PermalinkSynthesis and deposition of bismuth oxychloride with a rose-type flower shape and photoelectroactivity evaluation in the methyl orange discoloration reaction / Marcelo Rodrigues da Silva Pelissari in COLORATION TECHNOLOGY, Vol. 139, N° 6 (12/2023)
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PermalinkTeamwork brings innovative effect pigments to light / Rüdiger Iden in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 67, N° 843 (04/1995)
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